Underground geological formations have more space to store CO2 than we’ll ever need, by orders of magnitude. But the process of assessing the best locations can take up to ten years, so that work needs to start now, say Raimund Malischek and Samantha McCulloch at the IEA. The main constraints are technical (which porous rock formations absorb CO2 most easily, etc.), while the displacement of land use and public acceptance must also be considered. … [Read more...]
EEMPA solvent and CO2 mineralisation can take us one step closer to our carbon capture goals
If the models are correct that global carbon emissions will keep rising until at least 2040 then carbon capture and storage (CCS) is essential. And most of the vast amounts of CO2 we must capture won’t be “utilised” as it’s more than we can possibly use. So storage is an essential part of the equation, explains Jim Conca. He scopes out the problem before looking at two innovations that can bring costs down and bring the technology one step closer … [Read more...]
Carbon Border Adjustments: can the EU create a mechanism that is fair?
The proposed EU carbon border adjustment mechanism (CBAM) is meant to control imports of high-carbon goods from places that are not bound by Europe’s rising de-carbonisation rules. The obvious targets are commodities like steel, aluminium and cement. But it could be extended to all EU imports, including agricultural products. Michel Colombier at IDDRI warns that the EU is in danger of not listening nearly enough to its trading partners. He … [Read more...]
“Electro-swing cell” captures CO2 direct from the air
The problem with capturing carbon from a power plant is that the CCS system is itself huge, expensive, consumes a lot of energy, and only works on exhaust streams with high concentrations of CO2. What’s more, to meet global CO2 targets, total atmospheric CO2 has to be reduced, not just held at today’s concentrations by capturing new emissions alone. Writing for MIT, Nancy Stauffer explains how researchers there are piloting an “electro-swing … [Read more...]
EU ETS: The Market Stability Reserve should focus on carbon prices, not allowance volumes
The Market Stability Reserve (MSR) aims at providing carbon price stability for the EU Emissions Trading Scheme (EU ETS). But serious questions are being asked about how much stability – if any – it provides, say Michael Pahle at the Potsdam Institute for Climate Impact Research and Simon Quemin at the LSE's Grantham Research Institute. They argue that the MSR rules are too complex, have difficulty accommodating changing EU and national policies, … [Read more...]
Allam Cycle carbon capture gas plants: 11% more efficient, all CO2 captured
Globally, carbon capture is making precious little progress. Is the Allam Cycle natural gas power plant an important step forward? David Yellen at the Atlantic Council Global Energy Center explains that, according to its designers, its energy conversion efficiency is 59%, 11% more than a standard combined-cycle gas turbine plant that’s carbon capture-equipped. It also captures 100% of the CO2, 10% more than the standard. NET Power plans to bring … [Read more...]
10 Carbon Capture methods compared: costs, scalability, permanence, cleanness
We need to understand carbon capture, storage and utilisation (CCUS) better. To do so, this article looks at 10 methods and estimates how much CO2 each will take out of the atmosphere by 2050, and the cost per tonne. In their list the authors, Ella Adlen and Cameron Hepburn at the University of Oxford, cover the industrial (e.g. CO2-EOR, synfuels) to the biological (e.g. forestry, soil carbon sequestration). They say there are six that can be … [Read more...]
A cheap Carbon Capture breakthrough? MOF molecular cages that trap CO2
Carbon Capture is the Transition’s great unknown. Big targets have been set but nobody knows how we’re going to meet them. It's clear we need utility-scale breakthroughs, and fast. And cheap. We take a look at one example of cutting edge research that could deliver both. Scientists at the U.S. Department of Energy’s SLAC Laboratory and Stanford University have taken the first images of CO2 molecules captured within a highly porous nanoparticle … [Read more...]
Solar intermittency: upbeat “annual” carbon reduction estimates miss the “hourly” reality
There is a maximum speed at which solar capacity can expand. You know you’ve passed it when insufficient storage means solar curtailment, or selling the daytime excess means curtailment of other clean energy generators. As solar grows, so too will this problem. Vincent Xia, at the Precourt Institute for Energy, Stanford University, reports on a new Stanford study which says emissions predictions are not taking this into account, thus … [Read more...]
UK oil & gas keeps rising. Clean Energy blueprint can reverse it
In the UK the £2.3bn (=$2.9bn / €2.6bn) in new oil and gas subsidies introduced since 2014 will state-fund the addition of twice as much carbon as its coal phaseout saves, says a new report “Sea Change: Climate Emergency, Jobs and Managing the Phase-out of UK Oil and Gas Extraction”. Can the UK call itself a climate leader if its existing policies push it over its emissions limits? It can, if you consider this: the UK took 16 years to become the … [Read more...]
1.5°C: IEA’s scenarios will fail, need urgent review says letter from experts, business leaders
The letter’s signatories – experts, business leaders, politicians and more - call on the IEA to make the 1.5°C target the central scenario in its highly influential annual World Energy Outlook. At present, its “New Policies Scenario” puts us on track for between 2.7°C and 3.3°C. That's a problem, because too many energy decision-makers cite it as an acceptable guide, making it a self-fulfilling prophecy. Even the “Sustainable Development … [Read more...]
Climate Auctions can reduce emissions and accelerate regulatory, financial and infrastructure goals
Auctions for delivering an amount of power at a defined price are already well established for renewables. “Climate Auctions” do the same with carbon emissions: a carbon price is guaranteed to the winning bidder, but only paid on delivery of the emissions cut. Tyeler Matsuo and Julia Meisel at Rocky Mountain Institute say this is proving particularly useful in emerging and developing countries where progress in building up their climate laws is … [Read more...]
GGFI: “Avoid carbon bubble, choose financial centre wisely”
We already have indexes that pick green stocks, and rank nations by their policies. The Global Green Finance Index (GGFI) ranks the world’s financial centres – London, New York, Singapore, Shanghai, etc. – by the policies and support they give to green investments. Old ways of valuing assets, particularly in fossil fuel companies, are being questioned say Mike Wardle and Michael Mainelli of the think tank Z/Yen, one of the creators of the index. … [Read more...]
Investing in gas: the effect of carbon taxes, gas prices, and the growth of renewables
Schalk Cloete presents his latest article looking at what affects the profitability of an investment in a specific power sector. After reviewing onshore wind, nuclear and solar, he now looks at gas. His analysis of coal is to come. The major variables are increasing CO2 prices, and natural gas pricing. He adds that the growth of wind and solar should benefit load-following gas power plants: they are plugging the intermittency gap when electricity … [Read more...]
Energy as a service: light, heat, mobility, information
Large scale electricity generators, unconcerned with end-use, want to sell you more electricity, argues Walt Patterson of the Hoffmann Centre for Sustainable Resource Economy, based at Chatham House. But the arrival of small-scale, localised and micro-grid suppliers could see the electricity generation business turned on its head. It opens the door to the selling of the service – light, heat, refrigeration, motive power, information – rather than … [Read more...]
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